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Individual Calculations August 2023 |
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| Ushantha, R Total change: -79.60 | |   |
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| Sri Lanka Open Chess Championship 2023 | Colombo | SRI | 2023-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1128 | 1419 | 3.50 | 5 | -0.69 | 40 | -27.60 | |
|  Damsara , K D Dineth | | | 1034 | SRI | 1.00 | 1 | 0.09 | 40 | 3.60 | |  Nilupul, P Hasith | | | 1085 | SRI | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Bimansa, D G Jayandi | | | 1208 | SRI | 0.50 | 1 | -0.27 | 40 | -10.80 | | | Bandara, B G S N R | | | 1208 | SRI | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Gamage, P Lakindu Chamalka | | | 1106 | SRI | 0.00 | 1 | -0.86 | 40 | -34.40 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Sri Lanka National Team Chess Championship 2023 | Colombo | SRI | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1293 | 1419 | 2.00 | 5 | -1.30 | 40 | -52.00 | |
| | Rathnayake, M A A H | | | 1885 | SRI | 0.50 | 1 | 0.45 | 40 | 18.00 | | | Atulugamage, Saniru Lohan | | | 1306 | SRI | 0.50 | 1 | -0.15 | 40 | -6.00 | | | Perera, K A S M | | | 1042 | SRI | 0.50 | 1 | -0.41 | 40 | -16.40 | | | Thalgaswatta, N S | | | 1211 | SRI | 0.50 | 1 | -0.27 | 40 | -10.80 | | | Nerujan, N | | | 1023 | SRI | 0.00 | 1 | -0.92 | 40 | -36.80 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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